America's 10 Fastest-Growing States

*Data is U.S. Census population estimates from July 1, 2008--released on Dec. 22--and compared with census population estimates from July 1, 2007.

1. Utah

2008 Population: 2,736,424

2007 Population: 2,668,925

Year-over-year Increase: 2.53%

This state's population has grown by 2.53% in the last year, and over 22% since the 2000 Census. According to the Utah state government, there were approximately 40,000 babies born there over the past year, which means in-migration--those moving into the state from somewhere else--accounts for a small fraction of the overall population increase.